A team at Washington University in St. Louis has created a three-minute video capturing the unique interaction between water and three different oils when mixed using a magnetic stir bar. The resulting vortices, or funnels, display distinct characteristics due to their varying viscosities, showcasing the fluid dynamics phenomenon.
A Purdue University earth scientist has discovered that damaging winds within thunderstorms can form on the north side of a storm's path, rather than at its apex. This finding could lead to more accurate storm warnings and improved public safety.
The Penn State Earth 101 course uses B-movie clips to engage students in learning about natural disasters, promoting critical thinking and science-based decision-making. Students work on projects such as public affairs manuals for cities with earthquake histories, debating topics like government response to natural disasters.
Scientists are exploring the potential of infrasound pulses to detect natural disasters such as tornadoes and volcanic eruptions. Infrasound pulses can also be used to monitor and forecast volcanic eruptions, potentially providing valuable warnings for communities at risk.
A partnership between Navy and National Severe Storms Laboratory aims to improve weather forecasting by integrating SPY-1 radar with existing Doppler technology. The new phased array radar can provide faster updates of weather features, allowing for more detailed scans and increased lead time before tornadoes strike.
Tornado researcher Andrew Pazmany heads to the Great Plains to track supercells and determine conditions that enable F4/F5 tornadoes. He will use a modified marine radar to analyze storm structures and distances.
Researchers from the University of Massachusetts have produced the highest-resolution data ever available on a tornado during the May 3 storm in Oklahoma. By analyzing radar signals, they aim to determine what meteorological conditions enable supercells to form and drop dangerous tornadoes.
Researchers John Abrahamson and Peter Coleman successfully created stable fireballs in a mini tornado using liquefied petroleum gas, challenging existing theories about ball lightning. The experiment may have industrial applications and shed new light on unexplained UFO sightings.
Researchers at Georgia Tech are testing the Next Generation Warning Decision Support System (NG-WDSS) to improve tornado forecasting and warning times. The system uses advanced image processing, artificial intelligence, and other algorithms to provide more efficient and effective warnings for severe thunderstorms and flash floods.
A space-based network of sensors is showing value in spotting and tracking storms that are likely to spawn tornadoes. Storms that sent tornadoes through Georgia and Florida were observed from orbit by special sensors a few hours before and after they struck, providing critical data for improving tornado warnings.
A National Science Foundation study reveals that emotions after disasters are more complex than portrayed in the news, with positive emotions often present. Survivors who receive early social support tend to cope better over time.
Researchers have developed a two-part seismic device that can detect ground vibrations given off by an approaching tornado, allowing users to seek shelter. The 'sensor' portion of the device is designed to be affordable for everyone and can provide up to five minutes warning before a tornado strikes.
Tiny laboratory tornadoes may hold clues to detecting tornadoes earlier, a potential breakthrough in warning systems. Researchers have discovered an inverse relationship between vortex size and sound wave frequency.